Posts by ask@infosec.exchange
(DIR) Post #AlwcJCm0qj3V5z847E by ask@infosec.exchange
2024-09-13T00:53:06Z
0 likes, 0 repeats
@foone no love for 16 bit x86 PCs ðŸ˜
(DIR) Post #AmGQ7yqQyz8EQGHEbQ by ask@infosec.exchange
2024-09-22T14:10:01Z
0 likes, 0 repeats
@foone since BIOS is already dead maybe they could do ARM or RiSC-V and create another 40 years of de facto standard hardware interface.It's like half life, they have to do something revolutionary.
(DIR) Post #ApoHgf7WwyIUHEDg6C by ask@infosec.exchange
2025-01-06T15:53:08Z
0 likes, 0 repeats
@foone hey 1MB is a lot of RAM! We really have to stretch to make it fit in address space
(DIR) Post #ApoHvJh2tkDwAJorWC by ask@infosec.exchange
2025-01-06T15:55:52Z
0 likes, 0 repeats
@foone my favorite thing about this is the 1981 IBM PC had literally 4 rows of ram chips each making up 64k which is exactly one segment size.So if you space out your segments by 64k then the segment register is literally just selecting which of the 4 rows of chips to use.You can also expand it with an additional 10 non-overlapping segments for 14 total (the rest of the address space is ROM).
(DIR) Post #AqaT4HM8tlMxOVQCC8 by ask@infosec.exchange
2025-01-29T21:47:15Z
0 likes, 0 repeats
@futurebird I've seen them called life hacks since they don't actually work
(DIR) Post #AtRymMVeUs2rjmBH1s by ask@infosec.exchange
2025-04-25T13:06:00Z
0 likes, 0 repeats
@foone maybe it's time to do a side project to improve 16 bit x86 support in ghidra so it gets the addresses right.I feel your pain I had to use some truly arcane gdb config to debug my 16 bit x86 binary I wrote.